18458440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1$

素因数の和:503

約数の個数: 128

約数和(自身を含む): 55883520

約数和(自身を除く): 37425080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 461, 520, 572, 616, 715, 728, 770, 910, 922, 1001, 1144, 1430, 1540, 1820, 1844, 2002, 2305, 2860, 3080, 3227, 3640, 3688, 4004, 4610, 5005, 5071, 5720, 5993, 6454, 8008, 9220, 10010, 10142, 11986, 12908, 16135, 18440, 20020, 20284, 23972, 25355, 25816, 29965, 32270, 35497, 40040, 40568, 41951, 47944, 50710, 59930, 64540, 65923, 70994, 83902, 101420, 119860, 129080, 131846, 141988, 167804, 177485, 202840, 209755, 239720, 263692, 283976, 329615, 335608, 354970, 419510, 461461, 527384, 659230, 709940, 839020, 922922, 1318460, 1419880, 1678040, 1845844, 2307305, 2636920, 3691688, 4614610, 9229220, 18458440]

約数ペア:

[(1, 18458440), (2, 9229220), (4, 4614610), (5, 3691688), (7, 2636920), (8, 2307305), (10, 1845844), (11, 1678040), (13, 1419880), (14, 1318460), (20, 922922), (22, 839020), (26, 709940), (28, 659230), (35, 527384), (40, 461461), (44, 419510), (52, 354970), (55, 335608), (56, 329615), (65, 283976), (70, 263692), (77, 239720), (88, 209755), (91, 202840), (104, 177485), (110, 167804), (130, 141988), (140, 131846), (143, 129080), (154, 119860), (182, 101420), (220, 83902), (260, 70994), (280, 65923), (286, 64540), (308, 59930), (364, 50710), (385, 47944), (440, 41951), (455, 40568), (461, 40040), (520, 35497), (572, 32270), (616, 29965), (715, 25816), (728, 25355), (770, 23972), (910, 20284), (922, 20020), (1001, 18440), (1144, 16135), (1430, 12908), (1540, 11986), (1820, 10142), (1844, 10010), (2002, 9220), (2305, 8008), (2860, 6454), (3080, 5993), (3227, 5720), (3640, 5071), (3688, 5005), (4004, 4610)]